The Russian Defense Ministry said on Friday it is checking on information indicating that Islamic State leader Abu Bakr al-Baghdadi was reportedly killed in a Russia-led airstrike in Syria.

Russian Su-34 aircraft and an Su-35 multirole fighter carried out airstrikes near the Islamic State (IS, formerly ISIS/ISIL) stronghold of Raqqa in northern Syria on May 28, the ministry said. The strikes targeted a meeting of high-ranking Islamic State chiefs where al-Baghdadi was reportedly present.

The meeting was gathered to plan “routes for the exit of militants from Raqqa through the so-called ‘southern corridor’,” the statement read.

“According to information, which is being checked through various channels, IS leader Ibrahim Abu-Bakr al-Baghdadi was also present at the meeting and was killed as a result of the strike,” the ministry said in a statement.

Among those who were killed in the strike were Emir of Raqqa Abu al-Haji al-Masri, Emir Ibrahim al-Naef al-Hajj, “who controlled the district from the city of Raqqa to the settlement of es-Sohne” and IS head of security Suleiman al-Sawah,” the ministry added.

Moscow has given its American partners information about the place and time of the airstrike, the ministry said.